22264642 has 8 divisors (see below), whose sum is σ = 33727932. Its totient is φ = 11022000.

The previous prime is 22264631. The next prime is 22264651. The reversal of 22264642 is 24646222.

It can be written as a sum of positive squares in 2 ways, for example, as 22080601 + 184041 = 4699^2 + 429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22264642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54909 + ... + 55312.

Almost surely, 2^22264642 is an apocalyptic number.

22264642 is a deficient number, since it is larger than the sum of its proper divisors (11463290).

22264642 is a wasteful number, since it uses less digits than its factorization.

22264642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110324.

The product of its digits is 9216, while the sum is 28.

The square root of 22264642 is about 4718.5423596700. The cubic root of 22264642 is about 281.3229991911.

The spelling of 22264642 in words is "twenty-two million, two hundred sixty-four thousand, six hundred forty-two".